diff --git a/composer.json b/composer.json
index 26eace83..cb54606c 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,8 @@
         "zendframework/zend-diactoros": "^1.3.2",
         "phpstan/phpstan": "^0.9.2",
         "phpstan/phpstan-phpunit": "^0.9.4",
-        "phpstan/phpstan-strict-rules": "^0.9.0"
+        "phpstan/phpstan-strict-rules": "^0.9.0",
+        "roave/security-advisories": "dev-master"
     },
     "repositories": [
         {